diff --git a/src/audio/module_adapter/module_adapter_ipc4.c b/src/audio/module_adapter/module_adapter_ipc4.c
index 4e8c91be461c..b014290b380a 100644
--- a/src/audio/module_adapter/module_adapter_ipc4.c
+++ b/src/audio/module_adapter/module_adapter_ipc4.c
@@ -237,6 +237,10 @@ int module_set_large_config(struct comp_dev *dev, uint32_t param_id, bool first_
 
 	switch (pos) {
 	case MODULE_CFG_FRAGMENT_SINGLE:
+		if (data_offset_size > MAILBOX_HOSTBOX_SIZE) {
+			comp_err(dev, "invalid large_config fragment size %u", data_offset_size);
+			return -EINVAL;
+		}
 		fragment_size = data_offset_size;
 		break;
 	case MODULE_CFG_FRAGMENT_MIDDLE: